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Not annoyed at all! I enjoy chatting about these things. In my dream scenario? I think I'd love to see a scientific analysis on the topic and some real data.
by Ductapemaster 6y ago
Not annoyed at all! I enjoy chatting about these things.
In my dream scenario? I think I'd love to see a scientific analysis on the topic and some real data. A blog post with someone taking apart a DSLR, instrumenting the sensor and the surrounding electronics with a thermocouple to measure how hot it really gets over time, and proving it doesn't get to a point of damage would go a long way for me, and I would generally be interested in it. How hot does it actually get??
The wishy-washy "wear out" arguments I don't find particularly convincing (I did FPGA design for an endoscopic camera company for a couple years, so I am familiar with CMOS sensors in general). These DSLR sensors are quite large and I imagine can produce a significant amount of heat, and for all intents and purposes are built into systems that are intended for periodic use with photography. The manufacturing tolerances needed to build a system safe for continuous sampling/use don't particularly make sense when designing a photography camera ($$$). I'm dubious the manufacturers actually did the design optimizing for video use, and I presume this is why there are warnings in the manuals about continuous video use and limitations in the firmware. Maybe there's enough tolerance to handle some video, but not all the time.
I think I was a little careless in specifically calling out "sensor damage" — I'd actually be more concerned about the surrounding components than the sensor itself. Capacitors age and change tolerance in response to temperature cycling, for example.
- paulgerhardt 6y agoI mean, look, if we're going to quantify these things, you stand a greater chance of damaging the sensor by using the camera than not. It's a tool. It's a toy. Just like action figures, they're more fun out of the box. Here's a study from 2014: https://www.lmscope.com/en/warming_camera_sensor_en.html https://www.lmscope.com/en/warming_camera_sensor_en.html You can see a sharp rise in the first 15 minutes and the camera asymptotically approach 43ºC after an hour. Nikons are rated for 0-40ºC so there is some truth to them not wanting to warranty cameras used for more than half an hour. But 43º??? Come on. These components are easily rated for 60º. Anyone that's done any weather testing on consumer electronics can tell that it's the process of thermally cycling the DUT that will kill you (i.e. going from 20º to 30º hundreds of times, not holding it at 40º). If you are worried about the heat, I may recommend you mill off the CCD and install one of these bad boys: http://instein.eu/d3000.htm http://instein.eu/d3000.htm